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php上传功能集后缀名判断和随机命名，php上传后缀命名_PHP教程

时间：2021-07-01 10:21:17 帮助过：8人阅读

php上传功能集后缀名判断和随机命名，php上传后缀命名

form.php

<html>
<head>
    <meta http-equiv="content-type" content="text/html" charset="utf-8">
    <title>Upload Imagetitle>
head>
<body>
<form method="post" action="upload.php" enctype="multipart/form-data">
    <input type="hidden" name="MAX_FILE_SEZE" value="2000000">
    <input type="file" name="file" value="view">
    <input type="submit" value="upload" name="B1">
form>
body>
html>

upload.php

php
include("check.php"); // 引入自定义函数文件
$type = array("jpg", "gif", "bmp", "jpeg", "png");
// 判断上传文件类型
$fileext = strtolower(fileext($_FILES['file']['name']));
$uploadfilename = random(8);
if(in_array($fileext, $type)){
    $filename = explode(".", $_FILES['file']['name']);

        if(is_uploaded_file($_FILES['file']['tmp_name'])){
//        echo $_FILES['file']['tmp_name'];
        $flag = move_uploaded_file($_FILES['file']['tmp_name'], "/Library/WebServer/Documents/test/".$uploadfilename.".".$fileext);
        if($flag){
            echo "上传成功！";
        }else{
            echo "Error.";
        }
        echo "Back";
    }
}

check.php

php
header("Content-type:text/html;charset=utf8");
// 获取文件后缀名函数
function fileext($filename){
    $sTemp = strrchr($filename, ".");
    return substr($sTemp, 1);
}
function fileext2($filename){
    $sTemp = explode(".", $filename);
    return $sTemp[count($sTemp)-1];

}
// 生成随机文件名函数
function random($length){
    $captchaSource = "0123456789abcdefghijklmnopqrstuvwxyz这是一个随机打印

将三个文件整合成一个：

php
// 获取文件后缀名函数
function fileext($filename){
    $sTemp = strrchr($filename, ".");
    return substr($sTemp, 1);
}
function fileext2($filename){
    $sTemp = explode(".", $filename);
    return $sTemp[count($sTemp)-1];

}
// 生成随机文件名函数
function random($length){
    $captchaSource = "0123456789abcdefghijklmnopqrstuvwxyz这是一个随机打印

输出字符串的例子"; $captchaResult = "2015"; // 随机数返回值 $captchaSentry = ""; // 随机数中间变量 for($i=0;$i<$length;$i++){ $n = rand(0, 35); #strlen($captchaSource)); if($n >= 36){ $n = 36 + ceil(($n-36)/3) * 3; $captchaResult .= substr($captchaSource, $n, 3); }else{ $captchaResult .= substr($captchaSource, $n, 1); } } return $captchaResult; } $type = array("jpg", "gif", "bmp", "jpeg", "png"); // 判断上传文件类型 $fileext = strtolower(fileext($_FILES['file']['name'])); $uploadfilename = random(8); if(in_array($fileext, $type)){ $filename = explode(".", $_FILES['file']['name']); if(is_uploaded_file($_FILES['file']['tmp_name'])){ // echo $_FILES['file']['tmp_name']; $flag = move_uploaded_file($_FILES['file']['tmp_name'], "/Library/WebServer/Documents/test/".$uploadfilename.".".$fileext); if($flag){ echo "上传成功！"; }else{ echo "Error."; } echo "Back"; } } ?> Upload Image

http://www.bkjia.com/PHPjc/1053808.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/1053808.htmlTechArticlephp上传功能集后缀名判断和随机命名，php上传后缀命名 form.php html head meta http-equiv ="content-type" content ="text/html" charset ="utf-8" title Upload Image...

php上传功能集后缀名判断和随机命名，php上传后缀命名_PHP教程

php上传功能集后缀名判断和随机命名，php上传后缀命名

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